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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON |
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TIOCSWINSZ(2const) TIOCSWINSZ(2const)
TIOCGWINSZ, TIOCSWINSZ - get and set window size
Standard C library (libc, -lc)
#include <asm/termbits.h> /* Definition of TIOC*WINSZ constants */
#include <sys/ioctl.h>
int ioctl(int fd, TIOCGWINSZ, struct winsize *argp);
int ioctl(int fd, TIOCSWINSZ, const struct winsize *argp);
#include <asm/termios.h>
struct winsize {
unsigned short ws_row;
unsigned short ws_col;
unsigned short ws_xpixel; /* unused */
unsigned short ws_ypixel; /* unused */
};
Window sizes are kept in the kernel, but not used by the kernel
(except in the case of virtual consoles, where the kernel will
update the window size when the size of the virtual console
changes, for example, by loading a new font).
TIOCGWINSZ
Get window size.
TIOCSWINSZ
Set window size.
When the window size changes, a SIGWINCH signal is sent to the
foreground process group.
On success, 0 is returned. On error, -1 is returned, and errno
is set to indicate the error.
ioctl(2), ioctl_tty(2const)
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⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
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2024-06-26. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
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Linux man-pages 6.9.1 2024-06-13 TIOCSWINSZ(2const)
Pages that refer to this page: ioctl_tty(2)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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